Statistical analysis of low-latitude spread F observed over Puer, China, during 2015–2016

Author:

Lan TingORCID,Jiang Chunhua,Yang Guobin,Zhang Yuannong,Liu Jing,Zhao Zhengyu

Abstract

AbstractStatistical analysis of spread F (SF), recorded at Puer (PUR, 22.7° N, 101.05° E, Dip Latitude 12.9° N) during 2015–2016, was carried out to reveal its characteristics at the northern equatorial ionization anomaly. In our study, SF was categorized into four types, frequency spread F (FSF), range spread F (RSF), mix spread F (MSF) and strong range spread F (SSF). The statistical results presented that FSF and MSF were dominant over Puer. Most types of SF appeared mostly in summer months, except the maximum occurrence of SSF in equinox months. Moreover, observations of SF events also showed that the solar activity and magnetic activity dependence of SF varied with seasons. Compared with observations at other region, the present results suggest that medium-scale traveling ionospheric disturbances (MSTIDs) may play a key role in generation of SF in low-latitude region.

Funder

National Natural Science Foundation of China

Publisher

Springer Science and Business Media LLC

Subject

Space and Planetary Science,Geology

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